.tb-book{
    width:70%
}
.tb-book th{
    background-color:#336600;
    color:#ffffff;
    height:2em;
}
.tb-book tr{
    height:2.5em;
}

.tb-book td{
    border:1px solid black;
    padding-left:1em;
}
.footer{
    font-size:0.8em;
    position:absolute;
    bottom:1em;
    text-align:center;
}